摘要：Morphology and nutrient of leaf in Quercus castaneifolia (C.A.Meyer) seedlings in competition with blackberry ( Rubus fructicosus L.) was investigated in an intervened lowland forest of Noor city, north of Iran. The research was conducted as factorial experiment in three replications. For this purpose, seedlings of small (3 mm) and large (4 mm) in collar diameter (CD) were sown in two treatments (i) covered with Rubus and (ii) moved from Rubus in 0.5 m radius around the Quercus seedling, replicated three times. In the end of the first growing season, leaf samples were randomly taken from 9 seedlings in each treatment in order to determine leaf number, leaf dry matter , leaf area, growth flush number, apical shoot growth and concentrations of leaf nutrient (N, P, Mg and Ca). Leaf dry matter did not differ among the treatments. Leaf number and leaf area were greatest with large CD seedlings growing in moved Rubus area. The greatest apical shoot growth was observed with large CD seedlings growing in full Rubus area. The same as growth flush number, concentration of P, N and Mg was greatest with small CD seedlings in moved Rubus area. From this research it can be deduced that the seedlings growing in moved Rubus area produce greater plant biomass and mineral nutrient matter.
